<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, viewport-fit=cover" />
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet"
        integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"
        integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p"
        crossorigin="anonymous"></script>
    <!--dependencies-->
    <script crossorigin src="https://unpkg.com/jszip/dist/jszip.min.js"></script>
    <!--library-->
    <script src="dist/docx-preview.js"></script>
    <!--thumbnail example-->
    <script src="./demo/thumbnail.example.js"></script>
    <link href="./demo/thumbnail.example.css" rel="stylesheet">
</head>

<body class="vh-100 d-flex flex-column">
    <div class="hstack bg-black">
        <a class="mx-auto p-2 text-white" href="https://war.ukraine.ua">Support Ukraine 🇺🇦</a>
    </div>

    <div class="hstack p-2 gap-2 bg-light">

        <input id="files" type="file" class="form-control" style="width: 50ch;" accept=".docx" />
        <div class="col-2">
            <select id="testDocuments" class="form-select">
                <option disabled selected>-- Test Documents --</option>
            </select>
        </div>
        <button id="loadButton" class="btn btn-primary px-4">Reload</button>
        <div class="dropdown">
            <button class="btn btn-secondary dropdown-toggle" type="button" id="optionsMenuButton"
                data-bs-toggle="dropdown" aria-expanded="false">
                Options
            </button>
            <ul id="optionsMenu" class="dropdown-menu" aria-labelledby="optionsMenuButton">
            </ul>
        </div>
        <button id="saveTestButton" class="btn btn-primary px-4" style="display: none">Save Test</button>
    </div>

    <div class="flex-grow-1 d-flex flex-row" style="height: 0;">
        <details class="docx-thumbnails h-100">
            <summary></summary>
            <div id="thumbnails-container" class="docx-thumbnails-container"></div>
        </details>
        <div id="document-container" class="overflow-auto flex-grow-1 h-100"></div>
    </div>

    <script>
        let currentDocument = null;
        const docxOptions = Object.assign(docx.defaultOptions, {
            debug: true,
            experimental: true
        });

        const container = document.querySelector("#document-container");
        const fileInput = document.querySelector("#files");
        const loadButton = document.querySelector("#loadButton");
        const testDocuments = document.querySelector("#testDocuments");

        function renderDocx(file) {
            currentDocument = file; 

            if (!currentDocument) 
                return;

            docx.renderAsync(currentDocument, container, null, docxOptions)
                .then((x) => {
                    renderThumbnails(container, document.querySelector("#thumbnails-container"));
                    console.log(x);
                });
        }
        
        fileInput.addEventListener("change", ev => {
            renderDocx(fileInput.files[0]);
            testDocuments.selectedIndex = 0;
        });
        loadButton.addEventListener("click", ev => renderDocx(fileInput.files[0]));

        const menu = document.querySelector("#optionsMenu");

        Object.keys(docxOptions).filter(key => !/className/i.test(key)).forEach(function(key) {
            const listItem = document.createElement("li");
            listItem.innerHTML = `
            <div class="dropdown-item">
                <div class="form-check">
                    <label class="form-check-name"><input type="checkbox" class="form-check-input" ${docxOptions[key] ? 'checked' : ''}> ${key}</label>
                </div>
            </div>`;

            const checkInput = listItem.querySelector("input");

            checkInput.addEventListener("click", (e) => {
                docxOptions[key] = checkInput.checked;
                renderDocx(currentDocument);
            });

            menu.appendChild(listItem);
        });

        container.addEventListener("dragover", ev => ev.preventDefault());
        container.addEventListener("drop", ev => {
            ev.preventDefault();
            renderDocx(ev.dataTransfer.files[0]);
        });

        for (let testName of ['text','underlines','text-break','line-spacing','numbering','page-layout','table','table-spans','footnote','header-footer','revision','equation'])
        {
            var op = document.createElement("option");
            op.label = testName;
            testDocuments.add(op);
        }

        testDocuments.addEventListener("change", async e => {
            const selected = testDocuments.selectedOptions[0].label;

            if (selected) {
                let resp = await fetch(`tests/render-test/${selected}/document.docx`);
                renderDocx(await resp.blob());
                fileInput.value = "";
            }
        });

        document.querySelector("#saveTestButton").addEventListener("click", async () => {
            const file = await showSaveFilePicker({ types: [ { description: "HTML File", accept: { "text/html": [".html"] } }] });
            const stream = await file.createWritable();
            await stream.write(container.innerHTML);
            await stream.close();
        });
    </script>
</body>

</html>